Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd8cebea5754351…

MALICIOUS

PDF

43.9 KB Created: 2020-11-06 05:59:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26
MD5: 816c8dc66ee8fc27946163e1069444d7 SHA-1: 616a266c99564039ec74570c6792a15f7dccc27f SHA-256: 3dd8cebea5754351599e4cdb6cdee28be4fa4412d07ac7baa3594d671c7a75ba
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffmen.ru/123?keyword=free+download+of+the+song+lean+on+me In PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/tomupugu.pdfIn PDF document text
    • https://fevuxutub.weebly.com/uploads/1/3/4/1/134131759/8764035.pdfIn PDF document text
    • https://sikefaliwubu.weebly.com/uploads/1/3/4/3/134375420/1688339.pdfIn PDF document text
    • https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/705618.pdfIn PDF document text
    • https://sepijoverik.weebly.com/uploads/1/3/4/3/134317252/923fd0499f4.pdfIn PDF document text
    • https://zipazoraxegav.weebly.com/uploads/1/3/4/3/134325660/08443b91161239.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/green_felt_games_and_puzzles.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/sms_backup_and_restore_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/12011845495.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/34448439374.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/boilermaker_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/kalewekixusi.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/56096990826.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC3 5108 bytes
SHA-256: 2680b77510fd2968b29ada291e261659590b1d1f747cb7ad8f1a8f9f9eb06daa
font_01_sfnt_off00007008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7008 10812 bytes
SHA-256: de136fd057dded84b2e2a65a6e1e2d1466007b4788a4546be74641f4f41a997a
font_02_sfnt_off00009457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9457 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e